Dump cart



Sept. 11, 1934. c. SANDERS ET AL DUMP CART Filed April 11, 1932 2 Sheets-Sheet 1 Q .Q I I fiii. WI 1 I. T MN QM 00 GB 0 0 l 43 l l A \UQ Nb Q MN w INVENTORS 60/4 /7( Ja/ide/o" W/ 0/0 0; d

ATTORNEY.

m 1934- c. H. SANDERS ET AL ,9 0

DUMP CART Filed April 11, 1952 I 2 Sheets-Sheet 2 IN VEN TOR-5 b. Jame/J 9 d IMO/W? Patented Sept. 11, 1934' a DUMPCART I I Carl Sanders and Willard G. Rahsoni,lttawa,

Kans. assignorsof one-halfit o Cook "&'Raris'om,

f s-ia partnership composed of A. Cook, Sarah COokQand-W. G; Ransom Application April 11, 1932, Serial Nosed 1,502

4 Claims. (01. ass-:19)

Our invention relates to vehiclesandmore partions of thefframe members? The dumpbodyi's ticularly to dumpycarltsadapted to be drawn by ':'connected to the transverse sha'f-t by bea'ring tractors.= for conveying :loads in. road grading: and J plates 20 mounted ontheshaft-anddnoluding general construction work, the-principal objects eralwings 21 secured to a cross'channel22 fixed 5. or the invention being to provide mechanismiposito the lower surface of the-bottom i9.-"- The dump'f fi I itively connected with the power take-off of a body further includes side walls '23 having hori tractor for dumping the cart and simultaneously zontal upper edges 24,'and a;frontWall 25fangle opening its discharge door, and to embody. a irons 26 beingsecu'red'as bybolts'27 to-the-'c'or+'-' frame in a cart of this character of such design as ners of the body and perpendicular plates 28 be 10-.at'o permit a short turning radiusof thecoupled'fing simil'arlyfixed to the side walls 23 for"=re in-* tractor and cart; forcing the body.- a I In accomplishing these and other" objects of I In order to utilize the motive power of thetrac- 0 "inV t 0 W a D V dBd imp v d "d8 tor, for dumping the cart, a power take-off shaft tails of structure, the preferred form-Jof which is 29 of the tractor is connected by'apair of =um- 15xdiscl0sed'in theaccompanyingdrawings; whereversal joints 30 and a telescoping joint-31"to a; in: dumping'mechanismincluding a transverse'shaft" Fig.11 is a central longitudinal'sectionflof a 32, actuation of the take-off being controlled-at dump cart coupled to a tractor shovin'fragmenwill of the operator by means such as-aleverindi-f' y' in elevation, a p t on of the cart framecated at 33; The rear universal'jointissubstan 20'iibeingbrokenaway to betterdisclose thetmecha tially verticallyaligned with-the hingedpointof 5 nism for actuating a discharge door. v the universal draft coupling as shown ;in Fig. .-l'

2 is a p n 0f thefcaltand tractor so that the tractor andcartcan be'turned-sharply lustrating the short-turning radius of there-: a clearly di cl ed i 2, hicles madepossib by o inventionflhe floor of The shaft" 32 is rotatably carriedin bearing? 2bikthewcart being partially'ibroken away to disclose. p e 34 mounted between; spaced supportin'gfl portions of the dumpingrrnechan smlf bars 35 having their'out'er ends'secu'red' to'the"- F 3' IS a perspective VleW 0f $Q m 'frame' members, andprovided in the" supporting j 1' bers of the dumping and dooractuatlng appara bars t their approximate center' e 36 aligned with an opening'37 in the end cross tus. 3o 'ReferFing mare in detail to the W P plate'9 for receiving a driven shaft 38 connected 1 designates tractor, tPHateYPmar type to the rear universal joint and carryinga wg mf; commonlyused for constructionrvvork andcou- 39 on its portion located between t e" u p r g? pled'to dump cart g lt i by bars. Avvorrn gearflAO fixed'to the transverse Q universal draft 3 mcludmg honzontal: shaft.32 meshes'with the Worm gearfor trans i shaitportlonsll and 5 Journaned'in I mittirlgrotative movement of thedriven shaft-. M cooperatmg bearmg members; and to thetransverse shaft. ,Mounted'onthe qouterl,

The k i member 7 is preferably Secured b ends of the transverse shaftt32 are;crank'arms 4 1 tweenmclined channels 8 welded or otherwise pivotally connected to the IOWerehd-S b-fllrmks 42 secured'to a front cross member 9 connecting the v v v as indicated at 4 3. Theuppenends of :the;links 40 icirgvfa cgelcigrstiof spaced frame channels .10 apd are connectedibyiboltsvflfiitpigepending,flanges. Asparticularly shown inFigi 1; an axle. 12 is' 45 of angular l l l r l' imy journalled in the frame members adjacenttheir prpvided withPpenings forirecei-vntg bolts"? rear ends or approximate center of gravity of the or Suitable m 45 "cart formounting;the"fram'enon wheels 13 and plates the bottom of F Plump the major portion of the frames incline forward- Q foregomg, 1t W111 be apparent that ly and terminate in horizontal portions 14 having rotation or the driven shaft effects rotation of the a lower u f in a plane above the traction transverse shaft 32, thereby rotating the crank members or caterpillar 15 of the tractor to perarms about the Shaft for elevating and we 50 Pmit a short turning radius of the coupled tractor the from end of the dump cartand cart, as shown in Fig. 2. In order, however, to simultaneously actuate Pivotally mounted on a transverse shaft 16 a discharge (1001' p d to Close the rear journalled in bearings 17 on the frame members p end of the y and P a y u ted on is a dump body 18 having a rearwardly declined the body by arms 51 secured to the door and e, 65 b'ottom 19 adapted to rest on the inclined porhaving forward ends pivoted to the body, as at Q} I plates and adapted to engage 52, we provide a door actuating mechanism 53, now to be described in detail.

A pair of arms 54 extending along the sides of the body and connected to the discharge door by bolts 55 are pivoted at their forward ends to cranks 56 fixed to a transverse'shaft 57, and mountedon the. shaft are spaced gears'58 adapted to mesh'with gear racks 59 having upper ends mounted between the ears 60 of anchor plates 61 attached to the bottom of the body by bolts 62 or the like.

Means for retaining the racks in operable en'- gagement with the gears 58 preferably include plates 63 having openings 64 for receiving the transverse shafts 57 and provided with rollers 65- mounted on pins 65 projecting laterally from the the lower edges of the gear racks. I r

The door may further be provided with an outward bulge 66 to strengthen the door construction and to reduce, the danger of losing rocks or bouldersfrom the rear end ofthe load. The

ed with the power plant of a tractor, its opera- H tion. would be as follows. r When desiring to dump a load the power takeoff shaft is operably connected with the power plant of the tractor by the lever 33 and upon rotation of the power shaft, the worm gear will be rotated by the worm 39 thereby actuating the cranks 41 for elevating the connecting links 42 to lift the-forward end ofthe dump body. It will be apparent that upon elevation of this end of the body, the racks 59 rotate the gears'mounted on the shaft5'7 for'operating the cranks 56 to thrust the lower end of the discharge door outwardly, thereby permitting discharge of the load from the body. Continued rotation of the worm gear'a'n'd cranks 41 draws the front end of the body downwardly on the frame members and coincid'ently closesth'e discharge door. The ower take-off is then disconnected'from' thepower plant of the tractor andthe cart is ready to be reloaded.

Dueto the inclination of the frame members and'the'elevated' condition of the forward end of the cart frame, a very short turning radius of the coupled vehicles is made possible which is particularly advantageous in grading and general construction work. -'Ihe inclination of the cart bottom alsofacilitates-unloading of'the cart as will 1 be obvious; and the pressure of the load against the door upon dumping movement of the cart will-have a tendency to assist in dumping the cart thereby reducing the strain on the power take-off mechanism to an extent equal to the pressure on the door times the combined lever and gear ratio.

ing in a substantially horizontal portion having a connecting said dumping mechanism with the not be entirely rotated, but may beturned in either direction to the necessary extent'for moving the body toa proper position for loading and unloading.

' What we claim and desire to secure by Letters Patent is; k V

1. In combination with a tractor having a power take-off and traction members, a dump cart having a forwardly inclined and converging frame to clear the traction members when making .a turn with'the. tractor and cart, means for coupling the cart tothe tractor, dumping mechanism on the cart, and a shaft in a substantially horizontal plane above the traction members and' including telescoping sections operatively con- 0 necting the dumping mechanism with the power take-off.

2. In combination with a tractor: having a power take-off and traction members, a dump cart havinga forwardly inclined frameterminatlower surface in a plane above the traction mem-'- bers, means for coupling the cart to the tractor, dumping mechanism on the cart, and a shaft in a plane above the'traction members and-including telescoping sections and a universal joint for operatively'connecting the dumping mechanism with the'powertake-off- Y 7 r 3. In combination with a tractor having a power take-off and traction members, a dump cart having a forwardly inclined frame to clear the traction members'when making a turn withthe tractor and cart, means including a hinged I f joint for coupling. said cartito the tractor, dumping mechanism onthe cart, a shaft in aplanei above said coupling, means including a universal joint having its pivotal axis. substantiallyverticallyalignedwith said hinged joint for operably power take-off for dumping the:cart'.

4. In combination with .a tractor having apower take-off and. traction members, a dump cart having a forwardly inclined frame to clear I the traction members when making a turn with the tractor and cart, means including .a' hinged 330 joint for coupling saidcart to the tractor, dumping mechanism on the cart, a shaft in a substantially horizontal plane above the traction mom-M bers, a universal joint on the. shaft having its pivotal axis-substantially vertically aligned with .35

said hinged joint, and a shaft connecting the universal joint with the'power take-off to operate thedumping mechanism. I

l r pCARL H. SANDERS. i" 

